My Bimota has an axial clutch master with an air bubble in it that is defying expulsion. Does anyone know if it is possible to add a bleeder to one of these? It is a gold one with remote reservoir, from 2007 or so.
Thanks for any thoughts!
What we always did on say a Monster without a bleeder was to pump the lever up....hold it in...and just crack the banjo bolt for a split second. It helps if someone can hold a rag under it to catch the fluid.
Also make sure your master is as close to horizontal as possible.
Thanks, I did the pump and crack a couple of times, and I had the master off of the bar so that I could try different angles. I saw a few bubbles that way but still the lever will go to the bar when slowly pulled. I will go through it again, though. The controls have 12500 miles on them over 8 years, for what that's worth.
Are these remote reservoirs or coffins?
Gold line with remote
(https://www.revzilla.com/product_images/0245/3101/spiegler_bleeder_banjo_bolt.jpg)
I think you can use banjo bolt with bleeder nipple.
https://spieglerusa.com/brakes/brake-lines-accessories-tools/brake-line-accessories/accessory-type/bleeder-banjo-bolts.html
You can buy directly from Spiegler, you can buy it from Revzilla or STG, eBay, Jegs, etc.
The bajo bleeder is an option also.
I like the banjo bleeder, that will be next! Thanks!!
if it has the slave, pull the slave off and push the piston all the way in. That will push the bubble out at the reservior.
AKA "reverse bleed".
Thanks EEL, I'll try that.
One other thing, what are the symptoms of a bad master Cylinder?
The reason I ask is that when I pump the lever quickly is feels normal but when I pull the lever slowly there is no resistance.
Find a bolt the same size (not length) as the banjo bolt and a crush washer. Bench bleed. Does it hold pressure? More likely though, if there is leakage it is the slave. Remove it from the side cover and inspect.
Quote from: SpikeC on March 23, 2017, 03:32:23 PM
Thanks EEL, I'll try that.
One other thing, what are the symptoms of a bad master Cylinder?
The reason I ask is that when I pump the lever quickly is feels normal but when I pull the lever slowly there is no resistance.
I've had a bad master cylinder on my clutch lever in the past. First sign for me was leakage of fluid thru the rubber seal where the piston plunger on the clutch lever goes into master cylinder to actuate it. I saw brake fluid fly backward on my tank while I was riding.
Bubbles can compress differently when squeezed slowly vs quickly. Try a reverse bleed. The other option is to get a fancy banjo bolt. See link below from Spigler. This can allow you to bleed at any location. Not cheap though.
https://www.sportbiketrackgear.com/spiegler-banjo-bleeder-bolt/ (https://www.sportbiketrackgear.com/spiegler-banjo-bleeder-bolt/)
Oh crap that link was already posted! my bad!
Thanks, I now have the banjo bleeder. The EVR slave is definitely not leaking. I am not finding any fluid anywhere, which makes it so frustrating!
I pushed the slave piston all the way in, no joy.
Were any parts replaced recently?
Slave...line?
First I would like to express my thanks and appreciation to all who waded into this in spite of all of the previous threads that basically address this issue. You guys are the best!
I have this beaten,at least I hope I have! I added the bleeder to the master. Next, after more bleeding at both ends I pulled the slave again and pushed the piston all of the way into the housing. This resulted in no lever at all. I then proceeded to do an old fashioned pump and crack over and over, and a flurry of tiny bubbles started to appear. Encouraged by this I kept at it and viola! Proper lever feel! I rolled the bike out into the driveway, started it up, and put it into gear with no creeping, and neutral was a doddle to find. I drove it into the garage and it still worked, so I am tentatively declaring victory! All in all about 10 oz of fluid was used.
Thanks again for your help everyone, you're the best!
Best regards, Spike
I love it when a plan comes together.
Yay! So I guess it wasn't the battery [cheeky]
I learned a new word "doddle". So I came out of this having learned something as well! [laugh]
Glad it worked out! [thumbsup]